| A | B |
|---|
| relation | any set of ordered pairs |
| domain | the set of all first coordinates in the ordered pairs of a relation |
| range | the set of all the second coordinates of a function |
| function | a relation that assigns exactly one value in the range to each value of the domain |
| vertical-line test | a method used to determine if a relation is a function or not. |
| function rule | an equation that describes a function |
| function notation | to write a rule in function notation, you use the symbol f(x) in place of y. |
| independent variable | a variable that provides the input values of a function |
| dependent variable | a variable that provides the output values of a function |
| parallel lines | two lines in the same plane that never intersect |
| perpendicular lines | lines that intersect to form right angles |
| negative reciprocal | a number of the form -b/a, where a/b is a nonzero rational number |
| absolute value equation | equations whose graph forms a V that opens up or down |
| translation | shifts a graph horizontally, vertically, or both |
| distributive property | a(b + c) = ab + ac |
| term | a number, variable or the product or quotient of a number and one or more variables |
| constant | a term that has no variable factor |
| coefficient | the numberical factor when a term has a variable |
| like terms | terms with exactly the same variable factors in a variable expression |
| deductive reasoning | a process of reasoning logically from given facts to a conclusion |
| coordinate plane | a plane formed by two number lines that intersect at right angles |
| x-axis | the horizontal axis of the coordinate plane |
| y-axis | the vertical axis of the coordinate plane |
| origin | the point at which the axes of the coordinate plane intersect |
| quadrants | the four parts into which the coordinate plane is divided by its axes |
